Complete Round Table

Primacord). 3 DYNAMITE, ammonia, 40 _ DYNAMITE, ammonia, G0 . DYNAMITE, ammonia, gelatin, CAP, blasting, electric, No. 6 or No. 8, 40 - j CAP, blasting, nonelectric, No. I PTTCT w, DYNAMITE, gelatin, 40 , 6 or No. 8. FUSE' blast'nK- tlT e- DYNAMITE, gelatin, 60 . DYNAMITE, gelatin, 75 . Any cap, cord, or detonator listed below in this column and corresponding initiator. BLOCK, demolition, chain, Ml, BLOCK, demolition, M2.L BLOCK, demolition, M3, COMP j CAP, blasting, tetryl, electric. BLOCK,...

EGeneral

Dictionary of United States Army Terms _________________ SR 320-5-1 Engineers' Reference and Logistical Data___________________ FM 5-35 Inspection of Ordnance Materiel in the Hands of Troops .-__ TM 9-1100 Military Chemistry and Chemical Agents____________________TM 3-215 Ordnnnce Service-in the Field______________________________FM 9-5 Report of Loss, Theft, and Recovery of Government Property__SR 210-10-10

Ra Pd Wc

Figure 1. fiepretenivtivr type* of d molition mutfrials. cu A booby trap (fig. 2) is an explosive charge, either a standard mine or an improvised charge, that is exploded when a person disturbs an apparently harmless object. Although booby traps may be used in antipersonnel mine fields, they are not classified as antipersonnel mines. b. Booby traps are intended to be initiated by enemy action on a concealed explosive device by pressure, by lifting an object, thus releasing pressure, or by...

Ra Pd Ia

Drawings Single Barrel Shotgun

Firing device, pre* ure type. Ml Ai. TRIGGER HEAD FIRING PIN SAFETY FORK I PtRCUSSON BODY PRIMER FIRING PIN' KEYHOLE SLOT REMOVE LAST RELEASE PIN FIRING PIN SPRING Figure 1. Firing device, pr> * ure type, M1A1- pin from striking the primer should the firing pin be accidentally released. r. Functioning. A pressure of 0 pounds on the pressure cap compresses the tiring pin release pin spring and pushes the release pin inward. When the enlarged portion of the keyhole-shaped opening in...

V

Ciated with all packing containers and, unless the item is too small, on the item itself, b. Ammurdtion- Lot Number. When ammunition is manufactured, an ammunition lot number, which becomes an essential part of the marking, is assigned in accordance with pertinent specifications. The lot number consists, in general, of the loaders initials or symbol, the assigned inter fix number, and the serial number of the lot. The parts of the lot number are separated by dashes. This lot number is stamped...

Hose Retaiher

Pushing hookf demolition moke MS. Figure 73. Pushing hookf demolition moke MS. lition snake charges are not available or when stubs of exploded demolition snakes are salvaged to build new snakes. A bundle of four bangalore charges (figs, lti and 80) is loaded in each corrugation of the snake. The eight bangalore charges give an explosive weight of 14.4 pounds per foot. i Tail Ramp (fig. 81). The tail ramp is a small hinged steel skid, which fastens to the rearmost bolt of the...

Info

Packed and unpacked high-explosive items such as, cratering charges, shaped charges, demolition blocks, dynamite cartridges (sticks), detonating cord, firing devices, time blasting fuse (safety fuse), and similar items may be destroyed quickly and effectively by burning- Blasting caps set aside for destruction by burning must be stacked in separate piles and not with other explosives. a) The explosives should be stacked in a pile if possible (not over 2,000 lb to a pile). (b) Pour...

Demolition Complete Round

A demolition complete round consists of all the components in one system of explosives, ranging from the initiating element, to the element designed to accomplish the demolition. A complete round may be issued with all components in separate compartment of the same packing container or group of containers or with certain components shipped separately for assembly in the field. 5. Explosive Train, The main explosive charge of a demolition system must be comparatively insensitive,...

Primer Mixture

Detonator, Hnevond delay, Ui. Screw into threaded cap well in explosive. (e) Pull T-ring vigorously to fire and leave area immediately. Do not stop to investigate installation. Caution Once safety pin is removed, any movement of T-ring may ignite delay powder train and fire the detonator in prescribed rime. There is little warning as the powder train gives off practically no smoke and is practically noiseless in burning. (4) XeutraJizin j. The detonator cannot be neutralized once the...

Charge Shaped Pound M T

Marlin Rifle Exploded View

This charge (H< r. 11) contains approximately 30 pounds of 0 50 pentolite. or COMP B with a 30 50 pentolite booster, m a metal container. The cavity liner is made of metal, A threaded cap well is provided for receiving a blasting cap and adapter or any standard firing device. A metal tripod for gaffing correct stand off distance is shipped unassembled, but nested wifh the charge in the same container. This charge will penetrate 00 inches of reinforced

Functioning and

The blast-driven earth rod is used as indicated in a through g below. a. Prepare a conical depression about 8 inches deep and 30 inches in diameter at place where hole is desired. Insert the end of the 1*4-inch handle and starting rod into one of the points and drive it about 8 inches vertically into the center of the depression. Remove the handle, leaving the point at the bottom of the hole. Fit a main rod into the point, tamping around rod to hold it erect. Set the tripod so that its collar...

Ra Pd A

Firing device. prc urc-reha e tupe, J 5. (3) Remove mine or other restraining load. (4) Remove the device from mine or charge. (5) Unscrew coupling base and destroy or store iti a safe place. Protector cap from used la-second delay firing device may be used. Do not attempt to remove blasting cap f rom the coupling bane. e. Packing. Four firing devices, complete with percussion primers in the coupling bases, and four small plywood boards are packed in cardboard box. The dimensions...

Effectiveness of Demolition Snake M

Demolition snakes are most effective in flat or moderately rolling, open, or lightly wooded terrain Such terrain, moreover, is suitable for maneuvering tanks. b. Crater. The size of the crater blasted bv a demolition snake de-pends on the type of soil and its moisture content. In most soils, the crater will be 320 feet long, 12 to 16 feet wide, with maximum depth of 3 to 5 feet. The crater provides a well-marked route for tanks. (1) The principal use of demolition...

Rapo

ML where it is held by a screw, extends along the ampoule, through the firing pin spring, and to the tiring pin to which it is attached. r. Functioning. When the glass ampoule is crushed (fig. 28), the corrosive liquid is released. The liquid I hen eats through the restraining wire releasing the tiring pin. The firing pin. driven by a spring, fires the primer in the coupling base. A temjverature correction table (one in each box) shows the delay of a device...

Firing Device Delay Typer Ml

This is a chemical device fig. 27) used for delay action firing of a mine, demolition block, or other explosive charge. ft. Description. The device consists of a 1 wo part case or tube, the parts being joined near the center by a coupling. The tube is about three-eighths of an inch in diameter and the device is fU'i inches lone including a primed coupling base, which is not removable, having the same size thread and nipple as on all filing devices. The half of the case attached to...

Ckg

The churge and target, as any obstruction will materially reduce penetration effect. e. Although the principal effect of a shaped charge is in its piercing jet. considerable blast and fragmentation effect will be produced in all directions, especially directly opposite the direction of the jet. Personnel should withdraw 50 feet before firing the charge and all personnel within 200 feet should be protected bv adequate cover. . Since pentolite is somewhat more sensitive than TXT, shaped charges...

Scope

This manual provides information of a technical nature pertaining to the classification, identification, care, use, storage, packing and marking ,, and destruction to prevent enemy use of demolition materials, h. For principles, doctrines, and policies governing the tactical use of the demolition materials covered herein and the training and field operating procedures incident thereto, see FM 5-25. c. This manual differs from that part of TM 9-1940, 15 July 1943, in that it covers all...

Sct Position

Rover at one end and a threaded hole to receive a primed coupling base at the opposite end. The body houses a spring lever, a spring, and a firing pin. One end of a steel latch engages a lip on the lever, the remaining portion of the hitch rests on top of the device and, as issued, is held in place by a safety pin. This arrangement holds the lever in the set position. Two *16-inch holes are provided in the sides of the body, to permit the insertion of a nail or heavy gage wire to act as an...

Chapter

PRIMING AND INITIATING COMPONENTS, ACCESSORIES AND TOOLS There are two groups of demolition materials that may Ih* designated as the main explosive charges and the subsidiary materials known as priming materials required to initiate those charges in a safe, efficient, and expeditious manner. The use of priming materials in connection with explosive charges is indicated in paragraph ft, which explains the explosive train and also in complete round chart (app. I). Initiating materials, as the...

Primer Percussion Cap M2 For Land Mines

Primer. percu *irm cap, M2. Fiovre SI. Primer. percu *irm cap, M2. and a 0.085-inch hole at the other. It contains an inner inverted cup, an initiating charge, and an anvil. The primer produces a small flame when struck by a firing pin, to init iate a blasting cap or igniter charge. Firing devices are issued with this type of primer installed in the coupling base. The primer is also issued separately for repriming firing devices used with regular practice mines or with improvised...

Description

(1) The nylon-covered detonating cable is 170 feet long and about 1 inch in diameter, weighs pounds, and contains 46 pounds of oil-soaked PETN. This charge consists of 19 strands of special detonating cord, each strand containing approximately 100 grains of PETN per foot. This contrasts with the 40 grains per foot contained in regular detonating cord, which should not be used as a substitute. (2) The cable is coiled around a cone in a carrying case (tig. 62). The cone is removed (par. 107* )...

The individual items in this set are described separately in this manual The set fig consists of the items listed below

The item letters are keyed to figure 47. A BOX, cap, 10-cap eapHcity, infantry K r> FIRING-DEVICE, pitll-friction type, M2 C 30 CLIP, cord, detonating, Ml D 5 FIRING DEVICE, pressure type, M1A1 E 10 DETONATOR < five lo-sec delay, ill, and five 8-sec delay, M2) F 1 CHEST, demolition squad G 1 REEL, wire, firing, 500 ft, KL-30A, w 2 carrying straw winding device, vv o spend, w o wire, and 1 SPOOL, DR SA. empty, reel, wire, firing f> 00 ft H 1 BLOCKt demtuition, chain, Ml (eight 2U-lb...

M16 Auto Sear Hole Location

M16 Auto Sear Hole Location

Pushing asatmblp. demolition snake MS. RA P0 131010A Figure 90. Location of rigging fixtures on tank hulls. RA P0 131010A Figure 90. Location of rigging fixtures on tank hulls. fitting. Fasten one end of the -inch cable to the coil spring on the lifting bail, using the special cable clamp. Then, thread the cable through the pulleys and into the tank through the smaller hole in the periscope or direct-vision port fitting. Wind the end of the cable on the reel in the fitting. The...

Oa Po A

Priming axxembly, demolition, S(f > . priming assembly M15 together can be used as tlie 'priming of a system, of which, in this case, one or more demolition blocks M5A1 would be the main explosive charger. The blocks M5A1 are packed four in BAG, demolition block. M5. Two bags (eight blocks) and two priming assembly Mlo are packed in CASE, carrying, M85. Section IV. DEMOLITION TRAINING KITS T38 AND T39 These kits (tigs. 4 CO) are for the training of personnel in the use of...

Detonator M16 A1 4to5

CHARGE, shaped, 15-lb, M2A3.' CHARGE, shaped, 40-lb, M3 3 . DYNAMITE, military, Ml. DYNAMITE, military, M2. DYNAMITE, military, M3. EXPLOSIVE, nitrostarch various size blocks . EXPLOSIVE, TNT various size CORD, detonating PETN , CAP, blasting, FUZE, primacord .'2 any. type, Ml. DETONATOR, 8-sec delay, M2. CABLE, detonating, mine clearing, antipersonnel, Ml. CAP, blasting, special, nonelectric. CHARGE, for demolition snake M2. CHARGE, for demolition snake M2A1 and M3. CHARGE, propelling, M12, w...

Characteristics

Requirements of demolition explosives for efficient, and safe operation are a minimum of sensitivity, including insensitivity to bullet impact yet sufficient sensitivity to be positively detonated by simple initiators, relatively high detonation rate and power consistent with required insensitivity, storage stability at temperatures between 80 and 165 F., suitability for underwater use, and of optimum size and shape for convenient, handling. Characteristics used to aid in determining the...

Demolition Materials

Introduction--------------- ---------------- 1, 2 3 II. Demolition blocks______________________________ 19-26 27 III. Shaped charges 27-31 35 IV. Charge, explosive, cratering, 40-pound, ammonium nitrate, in waterproof metal container---------- 32, 33 40 VI. Torpedo, bangalore, MlAl 36-38 44 Chapter 3. PRIMING AND INITIATING COMPONENTS. 43,44 54 IV. Safety fuse and time blasting fuse______________ 45, 46 55 V. Detonating cord______________________________ . 47-50 56 VI. Firing...

Care Handling and Preservation

Warning Explosives and components containing explosives MUST be handled with appropriate care at all times. The explosive elements in primers, blasting caps, and fuzes are particularly sensitive to shock and high temperature. The use of the modern more highly sensitive explosives renders it especially necessary to follow the precautions herein and in TM 9-1900. 1 Demolition explosives and related items are packed to withstand conditions ordinarily encountered in the field, being packed for...

U

1ST FUZE SHIELD, 3 3D BOLT HOLE FROM TAIL 1ST FUZE SHIELD, 3 3D BOLT HOLE FROM TAIL Fitjvre 76. Longitudinal section of demolition mckc lf.5 ot fuze. Fitjvre 76. Longitudinal section of demolition mckc lf.5 ot fuze. j. Tamqriiuj Bans fig. 82 . Forty light cloth or paper bags, 4 inches in di amp metei and 24 inches long, are furnished with each demolition snake for use as tamping bags, to prevent the charges from shifting. They are filled with dirt to within 3 inches of the top, the end is...

Ra Pd

Detonating Cord Ww2

Cord, Detonating, Waterproof This cord consists of an explosive core of PETN contained in a braided seamless cotton tube. On the outside this tube is a layer of asphalt on which is a layer of rayon. All are covered by a continuous extruded coating of plastic, which is colorless and smooth to the touch. The outside diameter of the cord is 0.200 inch. This waterproof detonating cord is the standard cord for general use in military demolitions, both on land and underwater. 48. Cord, Detonating...

Snake Demolition M3

Equipment sets PvrafTapk P gt No. 1, engineer quad No. 2, engineer Xo. 5, individual. Xo. 7, electrical 100,101 108,110 T38 and T39 training ___________________________ 102, 103 110, 117 Snake. See Snake, demolition. Destruction Ammunition to prevent enemy use_____________________ 120, 121 153 Black-powder-loaded Destructor, high-explosive, universal, M10____________________Sew, 73 10, 86 Cable. See Cable, detonating, mine-clearing, antipersonnel, Ml. Cord, See Cord, detonating. Detonator...

Tube Connector Plug

Mk19 Grenade Launcher Field Stripped

CRUSHING GLASS AMPOULE IN TUBE THUS INITIATING THE DEVICE INSTALLED ON DEMOLITION BLOCK RAPD 130978 Fiffurr iS. Firing device, drlay tape. Ml installation. i If the liring pin rests on the identification and safety strip, remove the device and discard. 10 If the firing pin has not l gt ecri released, withdraw the strip. e. Xeutralteiruf. There is no safe war to neutralize this firing dn vice. If an extreme nr.e.exHVty arises to neutralize the device before the period of delay expires, a cotter...

Detonation

The flash of flame produced by detonation of the demolition snake M3 aluminum plates is greater than that produced by detonation of the M2 and M2A1 models steel plates . It may extend back to the tail of the snake, and, if the snake is detonated immediately after the tank disengages from the pushing hook, the tank may be partially enveloped in flame for an instant. A number of snakes have been fired with the tank in this position without injuries or damage. All precautions listed in paragraph...

Green Tube Red

A-METAl SHELL DETONATING CHARGE C-INTERMEDIATE CHARGE D-lGNlTING CHARGE p i PLATINUM WIRE OR BRIDGE WHiCH IS HEATED BY THE ELECTRIC CURRENT e .ENDS OF LEAD WIRES .IN IGNITING CHARGE G-PLUG ASPHALT H-FILLING MATERIAL l-INSULATED LEAD WIRES CAP. LASTING, TETRYL, ELECTRIC-EXTERIORS AND CROSS SECTION A-MET AL SHELL D-IGNITING CHARGE -DETONATING CHARGE E-CORE OF FUSE CAP. BLASTING, NON-ELECTRIC-CRIMPED TO TIMI , BLASTING FUSE SAFETY FUSE -CROSS SECTION PD '16377A the same electric characteristics. A...

Charge Shaped Poundr MA

Shaped Charge

This charge fig. 10 contains approximately 12 pounds of 50 50 pentolite, or COMP B with a 50 50 pentolite booster, in a moisture-resisting molded fiber container. The charge may be used m wet locations without deformation of the case. The top of the charge has a threaded cap well for receiving a blasting cap and adapter or any standard firing device. A cylindrical fiber base slips on the end of the charge, to hold the charge at the proper stand-off distance. A cone of glass is...

Manual Tnt Demolition

Training Kit Demolition

Demolition troinino kit TSi . Figure 56. Dr.molititm training kit TSH packing plan, middle taper. Figure 56. Dr.molititm training kit TSH packing plan, middle taper. Figure .77. Demolition trainino kit T38 packing plan, bottom layer. to be employed in exactly the same manner and with the same rare and precaution as are the explosive items comprising the demolition equipment sets simulated, hence it is essential that personnel, in training, be fully conversant with all procedures and...

Rapd

Blntting cup pnclced in carton . Because nonelectric caps are extremely difficult to waterproof, their use should l gt e avoided in priming charges placed under water or in wet boreholes. Such charges, if they are to be fired nonelectrically, should be primed with.the nonelectric blasting cap crimped to the detonating cord, which should be kept above the water or ground level. If it becomes necessary to use nonelectric caps in damp boreholes, they should W moisture-proofed with...

The individual items in this set sire described separately in this manual The set fig consists of the items listed below

Lineman Silhouette

Note The item letters are keyed to figure 48. A 2 BOX, cap, 50-eap capacity, engineer It 60 CLIP, cord, detonating. Ml C 15 FIRING DEVICE, pressure type, M3A1 I gt 10 DETONATOR, 15-sec delay. Ml ID 1 REEL, wire, firing. 0 ft, RL 3HA, w o carrying straps, vv wind- ing device, w o spool. w o wire, and T SPOOL, DR-8A, empty, reel, wire, firing, 500 ft F 3 BLOCK, demolition, chain. Ml lt eight 2a j-lb block strung on cord, detonating ft 1 WIRE, firing, 2-condnctor, vinyl polymer covered. SOW-ft...

Safety Fuse Igniter

Safety Fuse Igniter

Lighter, fuse, friction-type, J11. pull on the loop, or handle at the closed end. ignites the powder that, in turn, fires the j gt owder t rain in the fuse. To prevent pulling the fuse lighter from the fuse and causing an air gap between the fuse end and the lighter, hold the body of the lighter in one hand and pull the igniter wire with the other. If any doubt exists as to whether the fuse is burning and the length of fuse will permit time, pull the fuse lighter off the fuse by...

Defin Hons and Terms

Firing Device Demolition Booby Trap

Adapter Priming A plastic connector fig. 40 used to connect detonating cord, safety fuse M700 time blasting fuse, or electric firing systems to a demolition block. b. Blasting Cap. A 14-inch diameter approx metal tube or shell figs. 38 ami 39 containing a high explosive used to detonate a less sensitive explosive. There are two types of blasting cap, electric and nonelectric. The electric type is fired by an electric current and the nonelectric type is fired by safety fuse M700, time...

Bag Canvas Carrying Demolition Equipment

Firing Device Demolition Charge

Demolition Equipment Set No. 5, Individual The individual items in this set are described separately in this manual. The set tig. 4 consists of the items listed below Jiote, The Item letters are keyed to figure 49 A 10 LIGHTER, fuse, weatherproof. M2 B 2 FIRING DEVICE, pressure type. M1A1 C 8 BLOCK, demolition. M i COMP C3 2V -lb bl lt ck gt D 10 CLIP, cord, detonating. Ml E 2 FIRING DEVICE, pull-friction type. M2 F 10 ADAPTER, priming. 1I1A4. or ADAPTER, primiug, M1A3, or ADAPTER, priming....

With Electric Blasting

Bomb Blasting Cap

BLASTING CAP PULLED INTO ADAPTER READY FOR SCREWING INTO CAP WELL Of EXPLOSIVE B PRIMING ADAPTER USED WITH NONELECTRIC BLASTING BLASTING CAP PULLED INTO ADAPTER READY FOR SCREWING INTO CAP WELL Of EXPLOSIVE B PRIMING ADAPTER USED WITH NONELECTRIC BLASTING CAP AND SAFETY FUSE. NOTF DiTONAT NC, COPD MAY Bf USED IN THl iAMfc VANNFfi Ra pD ft lt 4 , Figure 40. C'se of adapter, priming. Sit A J, rith electric and nonelectric blast in, cap and with safety fuse and det mating cord PRlSiACORD . loaded...

Firing Mechanism Tri Pronged

This firing mechanism is a component of fuzes of bounding-type. and cast-iron-block type antipersonnel mine fuzes. The firing mechanism consists of a head arid case. The head contains a trigger pin, to which three pressure prongs are attached, and a release pin. The case contains a spring-loaded firing pin, which also extends through the head. The tri-pronged firing mechanism is used with antipersonnel mines b-d below , see TA1 9-1940. h. When the long-type coupling base with black powder...

Wire Annunciator and Firing

Firing wire for electric firing of charges is issued in 500 foot lengths of 2-conductor, No. 18 AWG plastic- or rubber-covered wire. The wire is carried on one of the reels described in paragraph 83. In setting off charges, two reels of wire may be required to reach a safe distance. Single-conductor No. 20 AWG annunciator wire is issued for making connections between electric caps or between cap and firing wire. See FM 5-25 for use of these wires in electric firing systems WIRE, annunciator,...

Firing Wire Spool

Detonator Cord Spool Ww2

Dfitructftr, high-exploitive, universal. MIO. to the full depth by adding boaster cups to the destructor MIO as required. c. Safety Precautions. Safety distance requirements for preparation of primers and demolition charges as set forth in TM 9-1900 must be observed when preparing the universal destructor MIO for use. 74. Adhesive, Paste, for Demolition Charges, One-Half Pound Can, Ml a. Adhesive compound is a sticky puttylike substance issued in some demolition sets for attaching...

Section Ii Demolition Blocks

Haversacks Demolition

Block, Demolition, Chain, Ml Eight2 -Lb. Blocks a. General- This explosive charge fig. 5 consists of eight blocks of tetrytol strung on a 16-foot length of detonating cord primacord and packed in a haversack. It is provided primarily for demolition purposes. The entire chain, or any part of the chain, may be used laid out in a line, wrapped around an object, or as packed in the haversack. Since tetrytol is more powerful and more brisant than TNT par- 23 , this explosive is more effective in...

Misfires

A misfire is a complete failure to function. A hangiire is the failure to function until an. abnormal lag beyond the instant of initiation has occurred, see SR 385-310-1. , Cauxex of Misfires and or Hang fire . 1 Electric or nonelectric blasting caps too weak to detonate explosive. 2 Deteriorated safety fuse or time blasting fuse, detonating cord, or explosive charge. 3 Improper electric or nonelectric connect5ons. 4 Improper operation of blasting machine. 6 Failure to make sure that the safety...

Crimper Cap WFuse Cutter M

i- This crimper BB, fig. 47 is designed to squeeze the shell of the nonelectric cap tightly enough around safety fuse or time blasting fuse or detonating cord to prevent it from being pulled off easily and still not interfere with the burning of the gt owder train in the fuse. The lower portion of the jaws of the crimper are shaped and sharpened for cutting fuse. One leg of the handle is pointed for punching holes for traps in dynamite cartridges. The other leg lias a screwdriver end. b. The...

In

Concrete 4,000 to 5,000 psi compressive strength with a hole tapering from 5 inches to 2 2 inches in diameter. b. Forking. The shaped charge M3 is packcd one per liber container, one container per wooden box. a. Description. This container fig. 12 consists of a body, a cone, and legs. The body is of terne plate or standard tin can stock in the shape of a hollow cylinder, 1 inch in diameter and 1 Vi inches in length. The cone, which has an angle of 80 , is of sheet steel and fits into one end of...

Launcher

Cable, detonating, mint -clearing, antipersonnel, MI -ready for firing. The item is issued complete with detonating cable, jet propulsion unit, launcher, firing equipment, and waterproof aluminum carrying case fig. 62 painted olive drab. Both ends of the case have removable lids with carrying handles. Each case is packed in a wooden box. Section II, SNAKE, DEMOLITION, M2, M2A1, AND M3 The demolition snake MS, which is described in this section, is the standard demolition snake-...

General

Destruction of demolition materials, when subject to capture or abandonment, will be undertaken by the using arm only when, in the judgment of the unit commander concerned, such action is necessary in accordance with orders of or policy established by the Army commander. b. This information is for guidance only. The conditions under which destruction will be, effected are command decisions and may vary in each case, dependent upon a number of factors such as the tactical situation, security...